Backup a MongoDB database using Git

mongodb_git_backup_export.sh

#!/bin/bash

#
# Author:       SuperPaintman <[email protected]>
#

# Export

# Init
me=$(basename "$0")
RETVAL=0

# Temp files
temp_files=()
trap_finish () {
    for temp_file in "${temp_files[@]}"; do
        rm "$temp_file"
    done
}
trap "trap_finish; exit" EXIT

# Help
show_help () {
    cat <<EOF
Usage: $me <database_name>
EOF
}

# Args
args=()
while [[ $# -gt 0 ]]; do
    arg="$1"
    shift

    case $arg in
        -h|--help)
            show_help
            exit $RETVAL
            ;;
        -*|--*)
            echo -e "Unrecognized argument: $arg"
            exit 1
            ;;
        *)
            args+=("$arg")
            ;;
    esac
done

# Params
database_name="${args[0]}"

if [ ${#args[@]} -ne 1 ]; then
    show_help
    exit 1
fi

rm -fr "${database_name}"

mongodump --db "${database_name}" \
    -u "$MONGO_USERNAME" \
    -p "$MONGO_PASSWORD" \
    -o ./

cd "${database_name}"

for i in *.bson; do
    bsondump --pretty "$i" > "$(basename "$i" .bson).json"
done
rm *.bson

for i in *.metadata.json; do
    temp_file="$(mktemp)"
    temp_files+=("$temp_file")
    cat "$i" | python -c '
import sys, json
print json.dumps(
    json.loads(sys.stdin.read()),
    sort_keys = True,
    indent = 8)
' > "$temp_file"
    cp -f "$temp_file" "$i"
done

cd ..

exit $RETVAL

mongodb_git_backup_import.sh

#!/bin/bash

#
# Author:       SuperPaintman <[email protected]>
#

# Import

# Init
me=$(basename "$0")
RETVAL=0

# Help
show_help () {
    cat <<EOF
Usage: $me <database_name>
EOF
}

# Args
args=()
while [[ $# -gt 0 ]]; do
    arg="$1"
    shift

    case $arg in
        -h|--help)
            show_help
            exit $RETVAL
            ;;
        -*|--*)
            echo -e "Unrecognized argument: $arg"
            exit 1
            ;;
        *)
            args+=("$arg")
            ;;
    esac
done

# Params
database_name="${args[0]}"

if [ ${#args[@]} -ne 1 ]; then
    show_help
    exit 1
fi

cd "${database_name}"

mongorestore --db "${database_name}" -u "$MONGO_USERNAME" -p "$MONGO_PASSWORD" ./
for i in $(ls | grep -v 'metadata\.json'); do
    mongoimport --db "${database_name}" \
        -c "$(basename "$i" .json)" \
        -u "$MONGO_USERNAME" \
        -p "$MONGO_PASSWORD" \
        "$i"
done

cd ..

exit $RETVAL